How To Fix CACSBAS408 - Invalid changes to valuation item in user exit '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: CACSBAS - Commissions: General Service Messages

• Message number: 408

• Message text: Invalid changes to valuation item in user exit '&1'

What causes this issue?

User exit &V1& has returned incorrect valuation lines.

System Response

Possible causes are:
New lines have been added.
Lines have been deleted.
Key fields have been changed.
None of the above changes should have been made.
Check which changes have been made in the called user function module
and correct the implemented function module accordingly.

How to fix this error?

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CACSBAS408 - Invalid changes to valuation item in user exit '&1' ?

  The SAP error message CACSBAS408, which states "Invalid changes to valuation item in user exit '&1'," typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with valuation items in the context of cost accounting or internal orders. This error indicates that there are invalid changes being made to a valuation item during a user exit, which is a point in the SAP program where custom code can be executed.
  
  Cause:
  
  
  Invalid Data Changes: The error usually arises when the user exit attempts to modify a valuation item in a way that is not allowed by the system. This could be due to:
  
  Incorrect data types or formats being used.
  Attempting to change fields that are not meant to be changed at that point in the process.
  Conflicts with existing data or business rules.
  
  
  
  User Exit Logic: The logic implemented in the user exit (identified by '&1') may not be handling the